Reviewing role of biochar in controlling soil erosion and considering future aspect of production using microwave pyrolysis process for the same

Wani, Insha; Narde, Shradul R; Huang, Xilong; Remya, Neelancherry; Kushvaha, Vinod; Garg, Ankit

doi:10.1007/s13399-021-02060-1

Cited by 13 publications

(3 citation statements)

References 175 publications

(213 reference statements)

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“…Nitrogen-fixing species (e.g., legumes) are sometimes used for hedgerows, and their practice is applied to crops as green manure to enhance nutrient recycling, which greatly reduces the need for commercial fertilizers [36,179,180]. In recent years, some amendments, such as biochar and polyacrylamide (PAM), have become research hotspots and have been adopted to reduce soil and water loss [104,[181][182][183][184][185]. However, these materials should be carefully used due to their negative effect under certain conditions.…”

Section: Increasing Coveragementioning

confidence: 99%

Soil and Water Conservation Techniques in Tropical and Subtropical Asia: A Review

et al. 2022

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Soil and water loss is a severe environmental problem in tropical and subtropical Asia (TSA). This review systematically summarizes the techniques that have been widely applied in the TSA region and compares the conservation efficiency of these techniques based on the runoff and sediment reduction ratios (ηr and ηs). The results show that the current techniques can be divided into biological, engineering and agricultural practice measures, and in most cases, their efficiencies in reducing sediment loss (ηs = 14.0–99.5%, 61.3–100.0% and 0.6–95.4%, respectively) were higher than in reducing runoff loss (ηr = 2.8–9.38%, 0.28–83.3% and 1.62–70.2%, respectively). Monocultures of single tree species (e.g., Pinus massoniana) sometimes showed very limited conservation effects. Vetiver and alfalfa were more effective at reducing soil loss than other hedgerow species. Contour tillage, ridge farming, and reduced tillage generally showed high efficiencies in reducing soil loss compared with other agricultural practice measures. The combination of engineering and biological techniques could more effectively reduce soil and water loss compared with the application of these techniques along. Future works should be conducted to build unified technical standards and reasonable comprehensive evaluation systems, to combine these techniques with environmental engineering technologies, and to develop new amendment materials.

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Section: Increasing Coveragementioning

confidence: 99%

Soil and Water Conservation Techniques in Tropical and Subtropical Asia: A Review

et al. 2022

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“…It is generally known that biochar amendment increases plant growth in soils with a pH below the optimum (Jeffery et al, 2017) and that this indirect plant growth mechanism may be expected to contribute to any potential reduction of soil erosion. Wani et al (2023) ascertained that the application of biochar reduced the rate of erosion by altering soil characteristics. The biochar application provides better soil characteristics by reducing bulk density and specific gravity, while at the same time increasing its porosity and organic matter content.…”

Section: Introductionmentioning

confidence: 99%

Effects of the application of biochar on the soil erosion of plots of sloping agricultural and with silt loam soil

Rončák,

Németová,

Vitková

et al. 2023

Journal of Hydrology and Hydromechanics

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The application of biochar is considered to be a beneficial strategy for improving soil ecosystem services. The objectives of this study are to evaluate the differences in the soil erosion of silt loam soil with or without the application of biochar and to compare the impact of the application of biochar on soil erosion for different agricultural practices, namely, bare soil, silage corn, and sown peas. Specifically, the physically-based EROSION 3D model was used to estimate the soil erosion of small plots of sloping agricultural land. In considering various combinations of agricultural practices and rainfalls with different durations and intensities, several scenarios were used to assess the impact of the application of biochar on soil erosion. The results of this study demonstrate that the highest mean values of mean soil erosion in the case study area were simulated without using any biochar on bare soil. The values of the mean soil erosion were reduced with the use of biochar. The effect of the application of biochar was shown for all types of agricultural practices; above all, it reduced soil erosion that occurred above high values (over 30 t ha–1). Although the application and reapplication of biochar showed promise in reducing soil erosion, further research is needed to gain a deeper understanding of its total effects.

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“…From the literature, it has also been observed that the use of biochar as a soil amendment is a novel and promising approach. It enhances soil quality for better water holding capacity (WHC), higher agricultural productivity, improves geoengineering works, and reduces environmental pollution and erosion [3,[26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Application of Artificial Intelligence for Predicting Erosion of Biochar Amended Soils

2022

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Recently, incentives have been provided in developed countries by the government for commercial production of biochar for soil treatment, and other construction uses with an aim to reduce a significant amount of carbon emissions by 2030. Biochar is an important material for the development of circular economy. This study aims to develop a simple Artificial Neural Network (ANN) based model to predict erosion of biochar amended soils (BAS) under varying conditions (slope length, slope gradient, rainfall rate, degree of compaction (DoC), and percentage of biochar amendments). Accordingly, a model has been developed to estimate the total erosion rate and total water flow rate as a function of the above conditions. The model was developed based on available data from flume experiments. Based on ANN modelling results, it was observed that slope length was the most important factor in determining total erosion rate, followed by slope gradient, DoC, and percentage of biochar amendment. The percentage of biochar amendment was a leading factor in the total water flow rate determination as compared to other factors. It was also found that the reduction in erosion is relatively minimal during an increase in slope length up to 1.55 m, reducing sharply beyond that. At a slope length of 2 m, erosion is found to be reduced by 33% (i.e., 2.6 to 1.75), whereas the total flow rate decreases linearly from 1250 mL/m2/min to 790 mL/m2/min. The ANN model developed shows that soil biochar composite (SBC) with 5% biochar amendment gave the best results in reducing soil erosion. This study can be a helpful tool in providing preliminary guidelines for using biochar in erosion control.

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Reviewing role of biochar in controlling soil erosion and considering future aspect of production using microwave pyrolysis process for the same

Cited by 13 publications

References 175 publications

Soil and Water Conservation Techniques in Tropical and Subtropical Asia: A Review

Soil and Water Conservation Techniques in Tropical and Subtropical Asia: A Review

Effects of the application of biochar on the soil erosion of plots of sloping agricultural and with silt loam soil

Application of Artificial Intelligence for Predicting Erosion of Biochar Amended Soils

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